Answer:
x=9 or -9
Step-by-step explanation:
the equation is:x^2-8=420-347
420-347=73
if x=9 then 81-8=73
and then 73=73
so x=9
hope this helps!
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Answer:
Step-by-step explanation:
Answer:
The velocity is 8.93 meters/second.
Step-by-step explanation:
It is given that Elena runs for 28 seconds and finishes at 250 meters.
Here the displacement is 250 meters and the time is 28 seconds.
We know that 
Substitute displacement = 250 and time = 28 in above formula.
meters/second
Hence, the velocity is 8.93 meters/second.
Answer:
0.25 (inches?)
Step-by-step explanation:
the equation is:
y=mx+b
y is the length of her hair, the dependent variable, the outcome
m is the slope, which is in this case the growth of her hair in a month
x is the independent variable, or the number of months
b is how long her hair is to start with, which is 12 in
we are looking for m, which is the growth of her hair per month, which is given as 0.25 inches, so that would be the answer
Answer:
27,000$ worth of sales
Step-by-step explanation:
What you need to earn - what you earn monthly = 1/6 of the amount you need to sell.
4000 - 2200 = 1800
1800 is ONE fifteenth of the sales.
1800 * 15 = 27,000.
You must sell MORE than $27,000 worth of sales in order to earn more than $4000.
